rfc2927.txt

著名的RFC文档,其中有一些文档是已经翻译成中文的的.


RFC 2927         MIME Directory Profile for LDAP Schema   September 2000


   Type special notes: Each value of this type specifies a single LDAPv3
   attribute value syntax.

   Intended usage: COMMON

3. Example

   From: [e-mail]
   To: [e-mail]
   Subject: schema information
   MIME-Version: 1.0
   Message-Id: <[e-mail]>
   Content-Type: text/directory; profile="schema-ldap-0";charset="utf-8"
   Content-Transfer-Encoding: Quoted-Printable
   ldapSchemas: ( 1.2.3.4 NAME 'bogus schema' CLASSES ( top $ thing ) =
   ATTRIBUTES ( objectClass $ name ) SYNTAXES ( =
   1.3.6.1.4.1.1466.115.121.1.38 $ 1.3.6.1.4.1.1466.115.121.1.15 ) )
   attributeTypes: ( 2.5.4.0 NAME 'objectClass' SYNTAX =
   1.3.6.1.4.1.1466.115.121.1.38 )
   objectClasses: ( 2.5.6.0 NAME 'top' ABSTRACT MUST objectClass )
   attributeTypes: ( 2.5.4.41 NAME 'name' SYNTAX =
   1.3.6.1.4.1.1466.115.121.1.15{32768} )
   objectClasses: ( 2.5.6.999 NAME 'thing' MUST name )
   ldapSyntaxes: ( 1.3.6.1.4.1.1466.115.121.1.15 DESC 'String' )
   ldapSyntaxes: ( 1.3.6.1.4.1.1466.115.121.1.38 DESC 'OID' )

4. Security Considerations

   A MIME body part containing an text/directory of the schema-ldap-0
   profile may be incorporated in a digitally signed MIME content, which
   can be used to verify that the body part has not been modified in
   transit.  When the signer has been certified by a trusted third party
   service, it may also be possible to verify the origin of the content.

5. Bibliography

   [1] Howes, T., Smith, M. and F. Dawson, "A MIME Content-Type for
       Directory Information", RFC 2425, September 1998.

   [2] Wahl, M., Howes, T. and S. Kille, "Lightweight Directory Access
       Protocol (v3)", RFC 2251, December 1997.

   [3] Wahl, M., Coulbeck, A., Howes, T. and S. Kille, "Lightweight
       Directory Access Protocol (v3): Attribute Syntax Definitions",
       RFC 2252, December 1997.

   [4] Bradner, S., "Key words for use in RFCs to Indicate Requirement
       Levels", BCP 14, RFC 2119, March 1997.



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RFC 2927         MIME Directory Profile for LDAP Schema   September 2000


6. Author's Address

   Mark Wahl
   Sun Microsystems, Inc.
   8911 Capital of Texas Hwy Suite 4140
   Austin, TX 78759
   USA

   EMail:  [e-mail]










































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RFC 2927         MIME Directory Profile for LDAP Schema   September 2000


Appendix A

   This appendix defines two new attributes which could be present in an
   subschema entry.  These attributes could be added to a future
   revision of the LDAP attribute definition [3].

A.1. ldapSchemas attribute type definition

      ( 1.3.6.1.4.1.1466.101.120.17 NAME 'ldapSchemas'
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.56 USAGE directoryOperation )

   Each value of the ldapSchemas attribute defines one schema.  Its
   syntax, given in section A.2, contains the elements needed for an
   LDAPv3 server to correctly process operations which use the
   definitions from this syntax.

A.2. LDAP Schema Definition syntax definition

      ( 1.3.6.1.4.1.1466.115.121.1.56 DESC 'LDAP Schema Definition' )

   Values in this syntax are represented according to the following BNF:

      LdapSchema = "(" whsp
        numericoid whsp
        [ "NAME" qdescrs ]
        [ "OBSOLETE" whsp ]
        [ "IMPORTS" oids ]
        [ "CLASSES" oids ]
        [ "ATTRIBUTES" oids ]
        [ "MATCHING-RULES" oids ]
        [ "SYNTAXES" oids ]
        whsp ")"

   The numericoid field uniquely identifies the schema.  A new OID
   should be assigned if any of the fields of the schema change.  It is
   not possible to import definitions from a schema until an OID has
   been assigned to it.

   The "NAME" field contains optional human-readable labels for the
   schema.

   The "OBSOLETE" field is present if the schema is obsolete.

   The "IMPORTS" field lists the OIDs of other schemas which are to be
   incorporated by reference into this schema.  It is an error to have
   an attribute type or object class defined in a schema with the same
   name but a different OID as an attribute type or object class in an




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   imported schema.  It is also an error to import from two schema
   definitions in which there are attribute types or object classes with
   the same names but different OIDs.

   The "CLASSES" field lists the OIDs of object classes defined in this
   schema.  A schema need not contain any object class definitions.  A
   schema must not contain two object class definitions of the same name
   but with different OIDs.

   The "ATTRIBUTES" field lists the OIDs of attribute types defined in
   this schema.  A schema need not contain any object class definitions.
   A schema must not contain two attribute type definitions of the same
   name but with different OIDs.

   The "MATCHING-RULES" field lists the OIDs of matching rules defined
   in this schema.  A schema need not contain any matching rules.

   The "SYNTAXES" field lists the OIDs of syntaxes defined in this
   schema. A schema need not contain any syntaxes.
































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Full Copyright Statement

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

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Acknowledgement

   Funding for the RFC Editor function is currently provided by the
   Internet Society.



















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